2007 Toyota Prius Slip Indicator Light amp Beeping

THEOUJISMATE

2007 TOYOTA PRIUS

Computer problem
2007 Toyota Prius Automatic 40000 miles

I was recently in an accident which damaged my alignment, tire rods, etc. $1500 later I get my car back and the slip indicator light comes on and beeping ensues if I go above 45mph. My mechanic couldn't reproduce the problem, so I'm left wondering what could be causing it and what options I have. Thank you for your help.